Patents by Inventor Andrew Rinzler
Andrew Rinzler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20090302310Abstract: A vertical field effect transistor (FET) comprises a gate electrode and a first electrode layer having a dielectric layer interposed between these electrodes and a semiconducting active layer electrically coupled to the first electrode. The active layer and the dielectric layer sandwich at least a portion of the first electrode where at least one portion of the active layer is unshielded by the first electrode such that the unshielded portion is in direct physical contact with the dielectric layer. A second electrode layer is electrically coupled to the active layer where the second electrode is disposed on at least a portion of the unshielded portion of the active layer such that the second electrode can form electrostatic fields with the gate electrode upon biasing in unscreened regions near the first electrode.Type: ApplicationFiled: June 29, 2007Publication date: December 10, 2009Inventors: Andrew Rinzler, Zhuangchun Wu, Bo Liu
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Publication number: 20080063585Abstract: This invention relates generally to a fullerene nanotube composition. The fullerene nanotubes may be in the form of a felt, such as a bucky paper. Optionally, the fullerene nanotubes may be derivatized with one or more functional groups. Devices employing the fullerene nanotubes of this invention are also disclosed.Type: ApplicationFiled: October 31, 2007Publication date: March 13, 2008Inventors: Richard Smalley, Daniel Colbert, Hongjie Dai, Jie Liu, Andrew Rinzler, Jason Hafner, Kenneth Smith, Ting Guo, Pavel Nikolaev, Andreas Thess
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Publication number: 20070141345Abstract: An optically transparent and electrically conductive single walled carbon nanotube (SWNT) film comprises a plurality of interpenetrated single walled carbon nanotubes, wherein for a 100 nm film the film has sufficient interpenetration to provide a 25° C. sheet resistance of less than 200 ohm/sq. The film also provides at least 20% optical transmission throughout a wavelength range from 0.4 ?m to 5 ?m.Type: ApplicationFiled: October 19, 2006Publication date: June 21, 2007Applicant: University of Florida Research Foundation, Inc.Inventors: Andrew Rinzler, Zhihong Chen
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Publication number: 20070065977Abstract: A method of forming patterned thin films includes the steps of providing a porous membrane and a solution including a plurality of solid constituents and at least one surface stabilizing agent for preventing the solid constituents from flocculating out of suspension. The solution is dispensed onto a surface of the membrane. The solution is then removed by filtration through the membrane, wherein a patterned film coated membrane comprising a plurality of primarily spaced apart patterned regions are formed on the membrane. In one embodiment the method further includes the step of blocking liquid passage through selected portions of the membrane to form a plurality of open membrane portions and a plurality of blocked membrane portions before the dispensing step. The dispensing step includes ink jet printing the solution. An article having a patterned nanotube-including film thereon includes a substrate, and a patterned nanotube including film disposed on the substrate.Type: ApplicationFiled: September 21, 2006Publication date: March 22, 2007Applicant: University of Florida Research Foundation, Inc.Inventors: Andrew Rinzler, Zhuangchun Wu
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Publication number: 20070048209Abstract: This invention relates generally to carbon fiber produced from fullerene nanotube arrays. In one embodiment, the present invention involves a macroscopic carbon fiber comprising at least 106 fullerene nanotubes in generally parallel orientation.Type: ApplicationFiled: August 22, 2006Publication date: March 1, 2007Applicant: William Marsh Rice UniversityInventors: Richard Smalley, Daniel Colbert, Hongjie Dai, Jie Liu, Andrew Rinzler, Jason Hafner, Kenneth Smith, Ting Guo, Pavel Nikolaev, Andreas Thess
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Publication number: 20070043158Abstract: This invention relates generally to a method for producing self-assembled objects comprising fullerene nanotubes and compositions thereof. In one embodiment, the present invention involves a three-dimensional structure of derivatized fullerene nanotubes that spontaneously form. It includes several components having multiple derivatives brought together to assemble into the three-dimensional structure. In another embodiment, objects may be obtained by bonding functionally-specific agents (FSAs) to groups of nanotubes, enabling them to form into structures. The bond selectivity of FSAs allow selected nanotubes of a particular size or kind to assemble together and inhibit the assembling of unselected nanotubes that may also be present.Type: ApplicationFiled: August 22, 2006Publication date: February 22, 2007Applicant: William Marsh Rice UniversityInventors: Richard Smalley, Daniel Colbert, Hongjie Dai, Jie Liu, Andrew Rinzler, Jason Hafner, Kenneth Smith, Ting Guo, Pavel Nikolaev, Andreas Thess
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Publication number: 20060213251Abstract: A multi-layer H2 sensor includes a carbon nanotube layer, and a ultra-thin metal or metal alloy layer in contact with the nanotube layer. The ultra-thin metal or metal alloy layer is preferably from 10 to 50 angstroms thick. An electrical resistance of the layered sensor increases upon exposure to H2 and can provide detection of hydrogen gas (H2) down to at least 10 ppm, The metal or metal alloy layer is preferably selected from the group consisting of Ni, Pd and Pt, or mixtures thereof. Multi-layered sensors and can be conveniently operated at room temperature.Type: ApplicationFiled: March 24, 2005Publication date: September 28, 2006Inventors: Andrew Rinzler, Jennifer Sippel-Oakley, Byoung Kang, Hung-Ta Wang, Fan Ren, Stephen Pearton
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Publication number: 20060008407Abstract: This invention provides a method of making single-wall carbon nanotubes by laser vaporizing a mixture of carbon and one or more Group VIII transition metals. Single-wall carbon nanotubes preferentially form in the vapor and the one or more Group VIII transition metals catalyzed growth of the single-wall carbon nanotubes. In one embodiment of the invention, one or more single-wall carbon nanotubes are fixed in a high temperature zone so that the one or more Group VIII transition metals catalyze further growth of the single-wall carbon nanotube that is maintained in the high temperature zone. In another embodiment, two separate laser pulses are utilized with the second pulse timed to be absorbed by the vapor created by the first pulse.Type: ApplicationFiled: April 30, 2003Publication date: January 12, 2006Applicant: William Marsh Rice UniversityInventors: Richard Smalley, Daniel Colbert, Ting Guo, Andrew Rinzler, Pavel Nikolaev, Andreas Thess
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Publication number: 20050260120Abstract: This invention relates generally to a forming an array of single-wall carbon nanotubes (SWNT) in an electric field and compositions thereof. In one embodiment, a purified bucky paper of single-wall carbon nanotubes is used as the starting material. Upon oxidative treatment of the bucky paper surface, many tube and/or rope ends protrude up from the surface of the paper. Disposing the resulting bucky paper in an electric field results in the protruding tubes and or ropes of single-wall carbon nanotubes aligning in a direction substantially perpendicular to the paper surface. These tubes tend to coalesce to form a molecular array. In another embodiment, a molecular array of SWNTs can be made by “combing” the purified bucky paper starting material with a sharp microscopic tip to align the nanotubes.Type: ApplicationFiled: August 7, 2003Publication date: November 24, 2005Applicant: William Marsh Rice UniversityInventors: Richard Smalley, Daniel Colbert, Hongjie Dai, Jie Liu, Andrew Rinzler, Jason Hafner, Kenneth Smith, Ting Guo, Pavel Nikolaev, Andreas Thess
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Publication number: 20050249656Abstract: This invention relates generally to forming a patterned array of single-wall carbon nanotubes (SWNT). In one embodiment, a nanoscale array of microwells is provided on a substrate; a metal catalyst is deposited in each microwells; and a stream of hydrocarbon or CO feedstock gas is directed at the substrate under conditions that effect growth of single-wall carbon nanotubes from each microwell.Type: ApplicationFiled: December 28, 2001Publication date: November 10, 2005Applicant: William Marsh Rice UniversityInventors: Richard Smalley, Daniel Colbert, Hongjie Dai, Jie Liu, Andrew Rinzler, Jason Hafner, Ken Smith, Ting Guo, Pavel Nikolaev, Andreas Thess
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Publication number: 20050244326Abstract: The invention relates generally to dispersing and fractionating single-wall carbon nanotubes, which can be derivatized to facilitate fractionation, for example, by adding solubilizing moieties to the nanotubes.Type: ApplicationFiled: December 22, 2004Publication date: November 3, 2005Applicant: William Marsh Rice UniversityInventors: Daniel Colbert, Hongjie Dai, Jason Hafner, Andrew Rinzler, Richard Smalley, Jie Liu, Kenneth Smith, Ting Guo, Pavel Nikolaev, Andreas Thess
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Publication number: 20050199894Abstract: A semiconductor device includes at least one semiconductor layer, a metal layer in electrical contact with the semiconductor layer, and a carbon nanotube contact layer interposed between the metal layer and the semiconductor layer. The contact layer electrically couples the metal layer to the semiconductor layer and provides a semiconductor contact having low specific contact resistance. The contact layer can be substantially optically transparent layer in at least a portion of the visible light range.Type: ApplicationFiled: February 22, 2005Publication date: September 15, 2005Inventors: Andrew Rinzler, Stephen Pearton
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Publication number: 20050100497Abstract: This invention provides a method of making single-wall carbon nanotubes by laser vaporizing a mixture of carbon and one or more Group VIII transition metals. Single-wall carbon nanotubes preferentially form in the vapor and the one or more Group VIII transition metals catalyzed growth of the single-wall carbon nanotubes. In one embodiment of the invention, one or more single-wall carbon nanotubes are fixed in a high temperature zone so that the one or more Group VIII transition metals catalyze further growth of the single-wall carbon nanotube that is maintained in the high temperature zone. In another embodiment, two separate laser pulses are utilized with the second pulse timed to be absorbed by the vapor created by the first pulse.Type: ApplicationFiled: April 30, 2003Publication date: May 12, 2005Applicant: William Marsh Rice UniversityInventors: Richard Smalley, Daniel Colbert, Ting Guo, Andrew Rinzler, Pavel Nikolaev, Andreas Thess